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Ignition set -BGM Pro electronic Fast Touring (with BGM Pro rotor) 1850g- Vespa Sprint150 (VLB1T), Sprint Veloce, GT125 (VNL2T), GTR125 (VNL2T), Super, GL150 (VLA1T), VNA, VBA, VNB, VBB - 1850g

€249.00 *

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BGM Pro ignition 12V conversion for Vespa Sprint, GT, GTR, VNA, VNB, VBB This conversion set...Continue reading


BGM Pro ignition 12V conversion for Vespa Sprint, GT, GTR, VNA, VNB, VBB

This conversion set offers two major advantages:

  • Strong 12V alternator
  • Solid state ignition

This set is designed for perfect and easy retrofitting of old, contact-controlled motors with self-regulating electrical system. It adapts to the crankshaft of the old engines, but already used modern technology much later models.

The ignition set is suitable for all 125-150cc large frame Vespa, whose inlet is controlled via the crankshaft (rotary valve). Here sits the carburetor without additional intake, directly on the engine block in a bowl. In general known as Sprint-engine, here the so-called small cone is used for fastening of the rotor.

This type was already used long before the sprint models appeared, starting in 1957 with the introduction of the Vespa VNA. From then on millions of Vespa have used this very reliable engine. So many vehicles from the era 1957 up to 1977 can be provided with the BGM kit.

These include, for example, Vespa Sprint, VNA, VNB, VNC, VBA, VBB, Super etc.

Of course without replacing the crankshaft!

However, it is necessary to adjust the harness or ideally be replaced with our modern conversion wiring loom. This is essential since in a modern electrics the alternator to maximum power yield all light coils are connected in series and only an energized cable as output for on-board voltage is present. This is then passed to the limited on-board voltage to a constant 12-13Volt, thereby blowing the bulbs is prevented by surge to the voltage regulator. Only from the regulator, the current to the individual consumer is then passed. Our very powerful BGM alternator can be used by this technique, the high light output and ignition performance guarantees, even at low speeds.

In connection with our BGM 12V voltage regulator, this results in a very contemporary board electrics which in addition to a brilliant and powerful light output even gimmicks like a DC output for charging function of a cell phone or navigation device.

The new BGM Pro version uses a modified original DUCATI flywheel. This is provided in complex manual work with a made in Germany by BGM guidelines cone.

Thus, it has a perfect balancing, balance, ignition timing and durability!

  • Light version with only 1750 grams Inertia
  • Reliable Electronic Ignition - never again set contacts
  • very high light output with 12V power port
  • Cone: smaller type with Ø 20mm shaft seal surface dynamo side (Sprint)
  • Necessary changes: new harness + controller, 12V bulbs

Scope of delivery:

  • Flywheel BGM PRO electronics 1850gr.
  • Stator plate bgm PRO V2.0 HP
  • CDI bgm original
  • Voltage regulator bgm PRO
  • Brake Light Switch DC
  • mounting materials

PLEASE NOTE: The alignment of the crankshaft in the engine housing, and thus also the position of the pole wheel, is much more variable with the old large-frame engines (recognizable by the same size crankshaft bearings with 25x62x12mm) than with the later PX engines.

The crankshaft bearings are not fixed in the engine housing by a snap ring, but only sit with a slight press fit in the housing. Due to various tolerances (e.g. the width of the shaft sealing rings, worn bearing seats, orientation of the cone on the crankshaft) there can be significant deviations from the originally intended positioning of the shaft in the crankcase. A prerequisite for correct ignition is perfect alignment of the pole wheel with the ignition base plate. Otherwise the trigger surface in the pole wheel will not run parallel to the pickup, which can lead to misfiring. If the ignition does not produce a spark, the fault is usually to be found here. For easy repair we offer distance plates (BGM8000S05) for the pickup on the ignition base plate. With it the correct distance can be restored in a simple way.



Fits the following vehicles

  • Vespa (Piaggio) Vespa 125 GTR (VLB2T)
  • Vespa (Piaggio) Vespa 150 GL (VLA1T)
  • Vespa (Piaggio) Vespa 150 Sprint (VLB1T)
  • Vespa (Piaggio) Vespa 150 Sprint Veloce (VLB1T)
  • Vespa (Piaggio) Vespa 150 Super (VBC1T)


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24 Jun 2019

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